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Vishay General Semiconductor - Diodes Division TPSMC30AHE3_A/H
- Part No.:
- TPSMC30AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC30AHE3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,702
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Product details
Overview
TPSMC30AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features a 30 V nominal breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage at 36.2 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - deployed in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the TPSMC30AHE3_A/H datasheet, TPSMC30AHE3_A/H pinout, TPSMC30AHE3_A/H application, or TPSMC30AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1.0 µA max reverse leakage at VWM, and compatibility with high-reliability automotive PCB layouts requiring RoHS-compliant, matte tin-plated leads.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress and elevated ambient temperatures. Its junction design enables 185 °C operation and meets AEC-Q101 stress test requirements including high-temperature reverse bias and temperature cycling.
The device responds in sub-nanosecond time to transient overvoltages and maintains low incremental surge resistance during 10/1000 µs waveform events. Clamping performance is characterized across -65 °C to +185 °C, with VBR exhibiting a +0.088 %/°C temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30.0 / 31.5 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 25.6 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| VC @ IPPM | 41.4 V - clamped voltage seen by protected circuit during 36.2 A 10/1000 µs surge, defining safe margin for downstream ICs |
| PPPM | 1500 W - peak transient power dissipation capability under standard 10/1000 µs waveform, per IEC 61000-4-5 |
| IFSM | 200 A - non-repetitive forward surge current rating for 8.3 ms half-sine wave, supporting inrush and fault-current handling |
| TJ max. | +185 °C - enables use in under-hood automotive modules and high-temperature industrial enclosures without derating |
| Leakage @ VWM | 1.0 µA - minimal standby power loss and negligible impact on high-impedance sensor bias networks |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case meeting UL 94 V-0; matte tin-plated leads; cathode indicated by color band; MSL Level 1 (260 °C reflow peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 24 V rail or CAN-H); voltage referenced to Anode during conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TC022 - supports PPAP documentation |
| Junction passivation | Optimized anisotropic rectifier structure reduces parameter drift over lifetime and improves reliability under thermal cycling |
| Low clamping ratio (VC/VBR) | 1.38 - tight voltage control minimizes overvoltage exposure to protected MOSFETs or microcontrollers |
| MSL Level 1 | No floor life limitation; compatible with standard SMT reflow profiles up to 260 °C peak without baking |
| RoHS & halogen-free option | HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified; HM3 suffix adds halogen-free compliance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of body control modules (BCM) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and input filter capacitor. Use Value: Withstands 1500 W surges while limiting clamped voltage to 41.4 V - preserving 36 V-rated DC-DC converters and MCU power supplies. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter outputs) from ESD and field wiring faults. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS connected across signal and ground to shunt fast transients before reaching precision DAC or op-amp. Use Value: Sub-nanosecond response and 25.6 V VWM prevent interference with normal 20 mA loop operation while suppressing >8 kV contact ESD. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-side surge protection on Ethernet PHY power rails (3.3 V or 5 V) in enterprise switches. IC Role / Device Role / Timing Role: Standoff-rated TVS placed adjacent to PoE controller ICs to clamp induced surges from cabling. Use Value: 41.4 V clamping voltage provides ≥1.5× margin above 24 V PoE midspan voltages, preventing latch-up in voltage regulators. |
Use Scenario: Snubbing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Unidirectional TVS mounted across motor terminals to absorb energy during MOSFET turn-off. Use Value: 200 A IFSM rating handles repeated commutation surges; 185 °C TJ rating sustains operation near hot motor windings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30AHE3/A | Same VBR (30 V), but lower PPPM = 400 W; SMA package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for automotive load dump or industrial 24 V rail protection | Select when space-constrained and surge energy ≤ 400 W; verify thermal derating on small pads |
| TPSMC33AHE3_A/H | Higher VBR (33 V), VWM = 28.2 V, VC = 45.7 V - tighter tolerance on higher-voltage rails | Better suited for 28 V aerospace or telecom systems where 30 V VWM would be marginal | Choose for 28–30 V nominal systems needing extra margin above VWM; same footprint and qualification |
Compared with SMAJ30AHE3/A and TPSMC33AHE3_A/H, the TPSMC30AHE3_A/H delivers optimal balance of 1500 W surge capacity, 25.6 V standoff, and AEC-Q101 qualification in SMC package - making it the preferred choice for automotive and industrial 24 V protection where both energy handling and reliability are critical.
Availability
TPSMC30AHE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, telecom line card surge suppression, and consumer appliance motor drive protection requiring stable component supply across extended temperature and lifecycle conditions.
Supply support for TPSMC30AHE3_A/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, high-temperature operation, and automotive qualification.
The TPSMC30AHE3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh environments including automotive under-hood, industrial automation, and infrastructure equipment.
FAQ
What is the maximum clamping voltage of the TPSMC30AHE3_A/H at its rated peak pulse current?
The TPSMC30AHE3_A/H has a maximum clamping voltage (VC) of 41.4 V at its specified peak pulse current (IPPM) of 36.2 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during worst-case surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The TPSMC30AHE3_A/H achieves this clamping performance while maintaining low incremental surge resistance and stable behavior across temperature.
Is the TPSMC30AHE3_A/H qualified for automotive applications?
Yes, the TPSMC30AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code suffix HE3. It undergoes rigorous stress testing including high-temperature reverse bias, temperature cycling, and humidity bias to meet automotive reliability standards. The device is explicitly designated for automotive use in the datasheet, and its 185 °C maximum junction temperature rating supports under-hood deployment. The TPSMC30AHE3_A/H is commonly used in body control modules, ADAS power supplies, and infotainment system protection.
What does the "HE3" suffix indicate in TPSMC30AHE3_A/H?
The "HE3" suffix in TPSMC30AHE3_A/H indicates RoHS-compliant construction and AEC-Q101 qualification. It also specifies matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and whisker resistance per JESD 201 Class 2. The "_A/H" portion denotes revision code A and packaging in 7-inch tape-and-reel (H = 850 units per reel). This full ordering code ensures traceability, regulatory compliance, and process compatibility for automotive and industrial manufacturing.
How does the TPSMC30AHE3_A/H compare to bidirectional TVS diodes in surge protection?
The TPSMC30AHE3_A/H is unidirectional and optimized for DC power rail protection where reverse voltage is not expected - offering lower leakage (1.0 µA at VWM) and tighter clamping than equivalent bidirectional parts. Unlike bidirectional TVS diodes, it does not conduct during normal negative excursions, eliminating unnecessary power loss and noise coupling. For AC-coupled or differential signal lines (e.g., RS-485), a bidirectional device would be required; however, for 24 V automotive supplies or industrial sensor outputs, the TPSMC30AHE3_A/H provides superior efficiency and reliability.
What is the thermal derating behavior of the TPSMC30AHE3_A/H above 25 °C ambient?
The TPSMC30AHE3_A/H follows standard derating curves per Figure 2 in the Vishay datasheet: peak pulse power (PPPM) decreases linearly from 100% at 25 °C to approximately 50% at 125 °C ambient, and further to ~25% at 175 °C. This derating applies to both power and peak current ratings and must be applied when designing for high-temperature environments such as engine compartments or enclosed industrial drives. The TPSMC30AHE3_A/H retains full functionality up to +185 °C junction temperature, but sustained high ambient requires careful PCB copper pad sizing and airflow analysis.
TPSMC30AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
TPSMC30AHE3_A/H FAQ
1.How can I place an order for TPSMC30AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC30AHE3_A/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPSMC30AHE3_A/H reliable?
The price and inventory of TPSMC30AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC30AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC30AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC30AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC30AHE3_A/H?
TPSMC30AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC30AHE3_A/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPSMC30AHE3_A/H?
For technical support, including TPSMC30AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC30AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC30AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC30AHE3_A/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPSMC30AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC30AHE3_A/H?
All TPSMC30AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC30AHE3_A/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPSMC30AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC30AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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